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• Inspect the mask and replace it if the cushion has hardened or is torn, or if any parts
are broken.
• Verify therapy device pressure(s).
Leak Symbol and Port Settings
Some ventilators may incorporate the use of a leak symbol and value in the mask selection
setup procedures. The leak characteristics of this mask is leak symbol ( ). The leak symbol
and value represents the intentional leak characteristics of the interface. On ventilators
equipped with a Mask Selection control, enter the leak symbol value ( ) that corresponds
with the leak symbol value on the mask.
Achieving the Right Fit
1. Hold the mask lightly against the patient's face and
slide the headgear over their head. You may want to
disconnect one of the swivel clips before putting the
headstrap on the patient. Reconnect the swivel clip
after the headstrap is in position.
2. Adjust the four position Forehead Arm to ensure
minimal mask contact pressure on the nasal bridge
while achieving minimal mask cushion leak. The
lowest position provides the highest contact
pressure at the bridge of the nose and provides
the best mask cushion seal. The highest position
provides the lowest contact pressure at the bridge of the
nose and provides lower mask cushion seal. Position the
forehead arm until you achieve a comfortable fit for the
patient with minimal mask cushion leak in the nasal bridge
area.
3. Connect the patient circuit (exhalation device and flexible
tubing) to the entrainment valve.
4. Unfasten the Velcro tabs on the headstrap and gradually
tighten to ensure the mask is tight enough to achieve minimal
mask cushion leak and a comfortable fit.
5. Turn on the noninvasive ventilator. Instruct the patient to
breathe normally.
6. Adjust the headstrap until the mask has minimal cushion
leaks and fits comfortably. Adjust the upper side straps first,
making sure that they are above the ears. Adjust the lower
straps, making sure the headstrap securely fits the back of the head. Re-adjust the strap
tension if leaks occur as the patient's position changes.
Caution: Do not overtighten the straps. Overtightening can cause or worsen leaks.
Removing the Mask
Disconnect the neck straps by removing the swivel clips from their sockets.
Reconnecting the Mask and Headgear
1. Slide the headgear swivel clips into the faceplate until they lock.
2. Insert the two lower straps through the appropriate swivel clip. Fold back and press the
hook tab on each strap until the strap is secure.
3. Insert the upper straps through the slots in the forehead support. Fold back and press the
hook tab on each strap until the strap is secure.
4. Position the upper straps so they are comfortably above the ears, and tighten as
necessary.
C
D
E
F
G
3
A
B
I
H
Figure 2
A = Forehead Support
B = Support Arm
C = Adjustment Tabs
D = Mask Faceplate
E = Entrainment Valve
(Do not block)
F = Exhalation Device
(Separate from Mask)
G = Flexible Tubing
H = Swivel Clip
I = Mask Cushion
J = Headstrap
J
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